the new model is to allow a controlled space for free commerce, for open education, even for dissent. perhaps people in these countries can use that space to slowly expand the realm of freedom and liberty. we'll be right back. >>> all the traditional stem fields, the science, technology, engineering, and math field are stoked when you dream big in an agency such as nasa. and it's not that much money. right now it's a half a penny on your tax dollar. i say double it to a penny. what do you got? restrained driver in a motor vehicle. sir, can you hear me? two, three. just hold the bag. we need a portable x-ray, please! [ nurse ] i'm a nurse. i believe in the power of science and medicine. but i'm also human. and i believe in stacking the deck. [ female announcer ] to nurses everywhere, thank you, from johnson & johnson. [ female announcer ] to nurses everywhere, one is for a clean, wedomestic energy future that puts us in control. our abundant natural gas is already saving us money, producing cleaner electricity, putting us to work here in america and supporting wind and solar. though al